[1.6.2][Solved]Weird code in RenderMinecart class

[Naiten]

So, it's in net.minecraft.client.renderer.entity.RenderMinecart: 39

long i = (long)par1EntityMinecart.entityId * 493286711L;
i = i * i * 4392167121L + i * 98761L;
float f2 = (((float)(i >> 16 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
float f3 = (((float)(i >> 20 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
float f4 = (((float)(i >> 24 & 7L) + 0.5F) / 8.0F - 0.5F) * 0.004F;
GL11.glTranslatef(f2, f3, f4);

Can anybody explain what is this?

[Mazetar]

Theres so much stuff like this inside the minecraft code, things that doesn't make sense at all.

I have no better guess than diesieben07 as to why that code is there

[ILuvYouCompanionCube]

That's the weirdest piece of code I've ever seen... And this is coming from someone who's trying to subclass net.minecraft.block.BlockRailPowered at the moment.

[hydroflame]

it looks like this will generate small values which will be used to translate de minecart by a small amount...but since the seed is the entityid that means the randomly gwnerated position will be different for every minecart but will never change for a specific minecart .... idk this code goal seems to make every minecart look different but by such a small amount that no one would even notice the difference... at least i never saw the difference .

[GotoLink]

This is probably a poor work-around to handle rare cases where minecarts would be at the same place simultaneously.

So that a player would see it.